Archive
Posts Tagged ‘IOError’
Python PIL : IOError: decoder jpeg not available
December 2, 2012
Leave a comment
Problem
Working with JPG files, PIL drops the following error:
Python PIL : IOError: decoder jpeg not available
Solution
sudo pip uninstall PIL sudo apt-get install libjpeg8-dev sudo pip install PIL
Found here.
Catch a specific IOError
March 30, 2012
Leave a comment
Problem
If you want to open a non-existing file, you get the following error message: “IOError: [Errno 2] No such file or directory:...“. How to catch this specific IOError? For instance you want to notify the user that the file is missing instead of just saying “an I/O error occurred”.
Solution
Example:
def read_data_file(self):
try:
with open(self.data_file) as f:
return json.load(f)
except IOError, e:
if e.errno == errno.ENOENT:
print "Error: the given file doesn't exist."
sys.exit(1)
Errno 2 == errno.ENOENT.
This tip is from here.
Categories: python
errno, errno 2, error handling, exception handling, IOError, No such file or directory
Python Adventures 